Yes delete your period app. But also don’t arrange rides for people to get abortions on Facebook. Don’t google “where to get an abortion” if you live in Texas. Don’t go to a protest unmasked. The privacy violations that are coming go so much deeper than period apps.
The penalty for RAPE is LESS than the penalty for the abortion that happens after the rape. Women are treated like literal objects without choice for their own autonomy. Please reach out to your local senators. Protect the women in your life.